MESON Chess Problem Database
Problem Display
PID: 21720 (4N3/2p5/4n1Q1/1Bpkp3/4R1K1/B1b5/2P5/8 w - - 0 1)
Guarini, Carlo
Lo Scacchistica di Roma, 1920
#2
7 + 6
| 5501 | Chess Cameos | 1936 |
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.c4#
- 1...Be1
- 2.c4#
- 1...Bb2
- 2.c4#
- 1...Bd2
- 2.c4#
- 1...Bb4
- 2.c4#
- 1...Bd4
- 2.c4#
- 1...Ba5
- 2.c4#
- 1...Sd4
- 2.Sxc7#
- 1...Sf4
- 2.Sxc7#
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...Sg5
- 2.Sxc7#
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...Sg7
- 2.Sxc7#
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...Sd8
- 2.Sxc7#
- 2.Bc4#
- 1...Sf8
- 2.Sxc7#
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...c4
- 2.Sf6#
- 1...c6
- 2.Bc4#
- 1...Ba1
- Tries
- 1.Kg3?
- 1...Ba1
- 2.c4#
- 1...Bb2
- 2.c4#
- 1...Bd2
- 2.c4#
- 1...Bb4
- 2.c4#
- 1...Bd4
- 2.c4#
- 1...Ba5
- 2.c4#
- 1...Sd4
- 2.Sxc7#
- 1...Sf4
- 2.Sxc7#
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...Sg5
- 2.Sxc7#
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...Sg7
- 2.Sxc7#
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...Sd8
- 2.Sxc7#
- 2.Bc4#
- 1...Sf8
- 2.Sxc7#
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...c4
- 2.Sf6#
- 1...c6
- 2.Bc4#
- 1...Be1+!
- 1...Ba1
- 1.Kh4?
- 1...Ba1
- 2.c4#
- 1...Bb2
- 2.c4#
- 1...Bd2
- 2.c4#
- 1...Bb4
- 2.c4#
- 1...Bd4
- 2.c4#
- 1...Ba5
- 2.c4#
- 1...Sd4
- 2.Sxc7#
- 1...Sf4
- 2.Sxc7#
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...Sg5
- 2.Sxc7#
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...Sg7
- 2.Sxc7#
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...Sd8
- 2.Sxc7#
- 2.Bc4#
- 1...Sf8
- 2.Sxc7#
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...c4
- 2.Sf6#
- 1...c6
- 2.Bc4#
- 1...Be1+!
- 1...Ba1
- 1.Sxc7+?
- 1...Sxc7
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...Kd6!
- 1...Sxc7
- 1.Bc1?
- 1...Ba1
- 2.c4#
- 1...Be1
- 2.c4#
- 1...Bb2
- 2.c4#
- 1...Bd2
- 2.c4#
- 1...Bb4
- 2.c4#
- 1...Bd4
- 2.c4#
- 1...Ba5
- 2.c4#
- 1...Sd4
- 2.Sxc7#
- 1...Sf4
- 2.Sxc7#
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...Sg5
- 2.Sxc7#
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...Sg7
- 2.Sxc7#
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...Sd8
- 2.Sxc7#
- 2.Bc4#
- 1...Sf8
- 2.Sxc7#
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...c6
- 2.Bc4#
- 1...c4!
- 1...Ba1
- 1.Bb2?
- 1...Bxb2
- 2.c4#
- 1...Be1
- 2.Rxe5#
- 2.c4#
- 1...Bd2
- 2.Rxe5#
- 2.c4#
- 1...Bb4
- 2.Rxe5#
- 2.c4#
- 1...Bd4
- 2.c4#
- 1...Ba5
- 2.Rxe5#
- 2.c4#
- 1...Sd4
- 2.Sxc7#
- 1...Sf4
- 2.Sxc7#
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...Sg5
- 2.Sxc7#
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...Sg7
- 2.Sxc7#
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...Sd8
- 2.Sxc7#
- 2.Bc4#
- 1...Sf8
- 2.Sxc7#
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...c6
- 2.Bc4#
- 1...c4!
- 1...Bxb2
- 1.Bb4?
- 1...Bxb4
- 2.c4#
- 1...Ba1
- 2.c4#
- 1...Be1
- 2.c4#
- 1...Bb2
- 2.c4#
- 1...Bd2
- 2.c4#
- 1...Bd4
- 2.c4#
- 1...Sd4
- 2.Sxc7#
- 1...Sf4
- 2.Sxc7#
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...Sg5
- 2.Sxc7#
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...Sg7
- 2.Sxc7#
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...Sd8
- 2.Sxc7#
- 2.Bc4#
- 1...Sf8
- 2.Sxc7#
- 2.Bc4#
- 2.Bc6#
- 2.Qc6#
- 1...c4
- 2.Sf6#
- 1...c6
- 2.Bc4#
- 1...cxb4!
- 1...Bxb4
- 1.Rc4?
- threat
- 2.Qe4#
- 1...e4
- 2.Qxe4#
- 1...Sd4
- 2.Sxc7#
- 2.Rxc5#
- 1...Sf4
- 2.Sxc7#
- 2.Qc6#
- 1...Sg5
- 2.Sxc7#
- 2.Qc6#
- 1...Sg7
- 2.Sxc7#
- 2.Qc6#
- 1...Sd8
- 2.Sxc7#
- 1...Sf8
- 2.Sxc7#
- 2.Qc6#
- 1...Bd4!
- threat
- 1.Kg3?
- Keys
- 1.Rd4+!
- 1...Kxd4
- 2.Qd3#
- 1...Bxd4
- 2.c4#
- 1...Sxd4
- 2.Sxc7#
- 1...cxd4
- 2.Sf6#
- 1...exd4
- 2.Qf5#
- 1...Kxd4
- 1.Rd4+!
There are these versions: 21721
FEATURES
- Static
- TYPE = CHECKING_KEY
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 8
- Sets
- B(a);OGATE::P(A)
- S(e);N_GUARD::S(G),XP(f)
- P(b);::S(G)
- P(f);SBLOCK::B(E)
- Tries
- Try
- K(D);P-FLIGHT
- Vars
- B(a);OGATE::P(A)
- S(e);N_GUARD::S(G),XP(f)
- P(b);::S(G)
- P(f);SBLOCK::B(E)
- Refutation
- B(a);CHECK
- Try
- K(D);P-FLIGHT
- Vars
- B(a);OGATE::P(A)
- S(e);N_GUARD::S(G),XP(f)
- P(b);::S(G)
- P(f);SBLOCK::B(E)
- Refutation
- B(a);CHECK
- Try
- S(G);CHECK,XP(f)
- Refutation
- K(c);P-FLIGHT,P_SPINP(b),P_SPINS(e)
- Try
- B(B);
- Vars
- B(a);OGATE::P(A)
- S(e);N_GUARD::S(G),XP(f)
- P(f);SBLOCK::B(E)
- Refutation
- P(b);
- Try
- B(B);
- Vars
- B(a);OGATE,XB(B)::P(A)
- B(a);OGATE::P(A)
- S(e);N_GUARD::S(G),XP(f)
- P(f);SBLOCK::B(E)
- Refutation
- P(b);
- Try
- B(B);
- Vars
- B(a);OGATE,XB(B)::P(A)
- B(a);OGATE::P(A)
- S(e);N_GUARD::S(G),XP(f)
- P(b);::S(G)
- P(f);SBLOCK::B(E)
- Refutation
- P(b);XB(B)
- Try
- R(C);
- Threat
- QAB1(F)
- Vars
- P(d);::QAB1(F),XP(d)
- S(e);N_GUARD::S(G),XP(f)
- Refutation
- B(a);
- Try
- Actual
- R(C);CHECK
- Vars
- K(c);P-FLIGHT,XR(C)::QAR1(F)
- B(a);OGATE,SBLOCK,XR(C)::P(A)
- S(e);SBLOCK,XR(C)::S(G),XP(f)
- P(b);SBLOCK,XR(C)::S(G)
- P(d);SBLOCK,S_CUTB(a),S_CUTP(b),S_CUTS(e),XR(C)::QAR2(F)
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